Question

L. Which of the following is dimensionlesa?
(a) v^2/rg
(b) v^2g/r
c) vg/r
d) v^2rg​

Answer 1

Answer:

Explanation:

g

v

2

r

​

=

LT

−2

(L

1

T

−1

)

2

L

1

​

=L

2

rg

v

2

​

=

L

1

(L

1

T

−2

)

(LT

−1

)

2

​

=M

0

L

0

T

0

r

v

2

g

​

=

L

(LT

−1

)

2

LT

−2

​

=L

2

T

−4

v

2

rg=(LT

−1

)

2

(L

1

)(LT

−1

)=L

4

T

−3

Hence, option B is correct.

Answered By

toppr

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Answer 2

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